Extend the use of IOBuffers to the code underneath...

net/base/ssl_client_socket_mac.h

 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_BASE_SSL_CLIENT_SOCKET_MAC_H_
 #define NET_BASE_SSL_CLIENT_SOCKET_MAC_H_
 
 #include <Security/Security.h>
 
 #include <string>
@@ skipping 21 matching lines @@
   // SSLClientSocket methods:
   virtual void GetSSLInfo(SSLInfo* ssl_info);
 
   // ClientSocket methods:
   virtual int Connect(CompletionCallback* callback);
   virtual void Disconnect();
   virtual bool IsConnected() const;
   virtual bool IsConnectedAndIdle() const;
 
   // Socket methods:
-  virtual int Read(char* buf, int buf_len, CompletionCallback* callback);
-  virtual int Write(const char* buf, int buf_len, CompletionCallback* callback);
+  virtual int Read(IOBuffer* buf, int buf_len, CompletionCallback* callback);
+  virtual int Write(IOBuffer* buf, int buf_len, CompletionCallback* callback);
 
  private:
   void DoCallback(int result);
   void OnIOComplete(int result);
 
   int DoLoop(int last_io_result);
   int DoPayloadRead();
   int DoPayloadWrite();
   int DoHandshake();
   int DoReadComplete(int result);
   void OnWriteComplete(int result);
 
   static OSStatus SSLReadCallback(SSLConnectionRef connection,
                                   void* data,
                                   size_t* data_length);
   static OSStatus SSLWriteCallback(SSLConnectionRef connection,
                                    const void* data,
                                    size_t* data_length);
 
   CompletionCallbackImpl<SSLClientSocketMac> io_callback_;
   CompletionCallbackImpl<SSLClientSocketMac> write_callback_;
 
   scoped_ptr<ClientSocket> transport_;
   std::string hostname_;
   SSLConfig ssl_config_;
 
   CompletionCallback* user_callback_;
 
   // Used by both Read and Write functions.
-  char* user_buf_;
+  scoped_refptr<IOBuffer> user_buf_;
   int user_buf_len_;
 
   enum State {
     STATE_NONE,
     STATE_PAYLOAD_READ,
     STATE_PAYLOAD_WRITE,
     STATE_HANDSHAKE,
     STATE_READ_COMPLETE,
   };
   State next_state_;
   State next_io_state_;
 
   int server_cert_status_;
 
   bool completed_handshake_;
   SSLContextRef ssl_context_;
 
   // These are buffers for holding data during I/O. The "slop" is the amount of
   // space at the ends of the receive buffer that are allocated for holding data
   // but don't (yet).
   std::vector<char> send_buffer_;
   int pending_send_error_;
   std::vector<char> recv_buffer_;
   int recv_buffer_head_slop_;
   int recv_buffer_tail_slop_;
+
+  // This buffer holds data for Read() operations on the underlying transport
+  // (ClientSocket::Read()).
+  scoped_refptr<IOBuffer> read_io_buf_;
 };
 
 }  // namespace net
 
 #endif  // NET_BASE_SSL_CLIENT_SOCKET_MAC_H_